11715549470417 has 8 divisors (see below), whose sum is σ = 12623340877224. Its totient is φ = 10808700248448.

The previous prime is 11715549470311. The next prime is 11715549470419. The reversal of 11715549470417 is 71407494551711.

It can be written as a sum of positive squares in 4 ways, for example, as 172923737281 + 11542625733136 = 415841^2 + 3397444^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11715549470417 - 2⁴² = 7317502959313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11715549470419) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 235520378 + ... + 235570115.

It is an arithmetic number, because the mean of its divisors is an integer number (1577917609653).

Almost surely, 2^{11715549470417} is an apocalyptic number.

It is an amenable number.

11715549470417 is a deficient number, since it is larger than the sum of its proper divisors (907791406807).

11715549470417 is a wasteful number, since it uses less digits than its factorization.

11715549470417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 471092419.

The product of its (nonzero) digits is 4939200, while the sum is 56.

The spelling of 11715549470417 in words is "eleven trillion, seven hundred fifteen billion, five hundred forty-nine million, four hundred seventy thousand, four hundred seventeen".